Humidifier.



J. KELLY.

HUMIDIHER. APILICATION FILED HAR. 1, 1909.

Patented Jan. 18,1910.

UNITED STATES PATENT GFFICE.r

.TAiviEs KELLY, or PROVIDENCE, RHODE IsLAND.

To all whom 'it may concern: y, Be it known that I, JAMES KELLY, acitizen of the United States, residingat Providence, in the county ofProvidence and State of Rhode Island, have inventedA certain new anduseful Improvements in I-Iumidiers, of which the following is aspecification, reference being had therein to the accompanying drawings.

Like reference letters indicate like parts. Figure l is a view inelevation of my improved discharging nozzle for humidil'iers. Fig. 2 isa central longitudinal view ofthe same. Fig. 8 is a view partly in topplan and partly in cross section-on line .fw w of Fig. 2; Fig. 4 is aview in cross section as seen on line m of Fig. 2. partly in top planand partly in cross section on line y y of Fig. 2. partly in plan andpartly on line .a c of Fig. 2. Fig. 7 vation of a modified form of myinvention. Fig. 8 is an inverted or bottom plan view of the lower end ofthe nozzle shown in'Fig.' 7,

My invention relates to the class of humidiiiers and more particularlyto the .discharging nozzles therefor; and it consists of the novelconstruction and combination of the several parts hereinafter describedas specifically set forth in the claims.

The humidiiiers to which my invention especially is applicable are thoseused for purifying, cooling and moistening the atv mosphere in mills forthe manufacture of yarns and textile fabrics. In such factories the airis liable to become very dry and to be more or less filled with floatingparticles and fibers, which are harmful to the health of the operators.

The improvement hereinafter described in cross section 1s a view 1nelehas for its purposes the simplification of the discharging portion ofa humidifying apparatus, and the division within the nozzle, of the oneentering current ,of mingled water and air under pressure into severalcurrents, in contiguity, one with the others, by means of a plurality ofparallel passages or tubes, which conduct the several currents to acommon annular discharging device; and also an increase in theproportionate area ofinv` ternal tube surface, against which thesaidwater and air impingeduring their passage, resulting inthe greaterdegree of mixture of the two elements.

In the drawings, A indicates the nozzle,

Fig. 5 is a view` Fig. 6 isa view an interior screw thread,

. In Fig. 2,

Specication of Letters Patent. Patentedy J an. 18, 19170. Applicationfiled March 1, 1908; Serial No. 480,634.

elusive; A-t the upper end the nozzle has an n exterior screw thread Z9and at thelower end it has `anlexteriorscrew thread c. -A ltubularoouplingB'has an enlarged tubular end C, concentric therewith, and isprovided there with, ank interior screwthread, engageablev with thescrew thread 'b of the nozzle A; and it has at its upper end an interiorscrew` thread QZ, yby which it is engageable with a suitable pipe, whichconducts to said nozzley mingled water and air under pressure', as iswell known in kdevices of this class. the yenlargement C of the couplingB, `on accountof the greater diameter of theformer, there is a chamberc. At the center of the upper 'endof the nozzle A there is aconicallyshaped, upwardly-directed deflector D, whichextendsfup into thechamber c. The deiiector I) is thus located between the upper ends .ofthe several tubular passages a, as seen in Figs. 2 and 3. A cap E,having is engageable thereby with thescrew thread c at the lower end ofthe nozzle A, considerably below, however, the discharging orificesthereof, presentlyy described.l Thelower end of each tubular vpassage ais closed by a plugrF, .or other suitable means, accessible by theremoval ofthe cap E.

two of the tubular passages a are shown in full lines and one ofthewother tubular passages a is shown in dotted vertical lines.. Y L

An annular discharging iiange G sur Within x rounds the nozzle A ashortdistancejabove the cap E, and is dished, or concaved, on

its upper surface, as shown in Fig. 2. Each tubularl passage a has asmall slot or discharging orifice H, extending through to the outsideofthe nozzle AL and located so as to discharge the contents of thetubular passage a upon the upper dished surface of the iflange G. Y

The operation of my improved nozzle for humidifiersis as follows.Mingled air and water, under pressure, as usual in humidifying devices,are discharged through a feed pipe (not shown), which pipe enters theopen end of the coupling pipe B, and engages therewith by the screwthreads d. The volume of mingled air and water passes through the uppertubular part of the coupling B into the chamber c, and is dividedtherein by the conical deflector D, and directed into the tubularpassages a, and thence is discharged through the several orifices H. Thecurrents, so discharged through the orifices H, impinge against theupwardly inclined surfaces of the annular fiange Gr, and are thusprojected radially outward at a sufficient angle to penetrate aconsiderable distance into the external atmosphere, which readily takesup and absorbs the moisture so provided.

Each of the tubes a is closed at the bottom by a plug F, inserted orengaged therein in any suitable manner. The current in the lower portionof the tube a is thus turned back against itself, which results in astill more thorough division of the water and the mixing thereof withthe air to an increased degree of fineness. The discharge, therefore,through the orifices H is very forcible, as there is no exit for the airand water current from the tube a, except through the dischargingorifices H, and as these openings are constricted and of limitedcapacity, there is an accumulation of power within the tube a, and anozzle effect is given by the constricted passage H, so that the jet ofmingled air and water issuing therefrom penetrates far into the externalatmosphere. There is practically no sediment carried into the tubes a,but if there should be any it is forced to the bottom of said tubes. Anyformation of sediment is removable therefrom by unscrewing the cap E,and withdrawing the plugs F.

In Figs. 7 and 8 is shown a modified form of the apparatus. In Fig. 7 Bis the coupling and C the enlargement to form the internal .space orchamber. Four (or any other desired number of) pipes, designated as a',a, are grouped or clustered symmetrically around a central rod M, whichis longitudinally grooved, as illustrated in Fig. 8. These grooves areconcaved and of a curvature to adapt them to serve as seats to receiveand support the tubesa, respectively. These tubes a may be secured toeach other by solder, indicated at m, or otherwise, and may also besoldered or secured to the central rod M. N, N, are plugs to close thelower ends of the tubes a', a. Each tube a has a discharging orifice(not shown which opens into the concaved portion o an annular flange Gr.The deflector is indicated in Fig. 7, by dotted lines and is designatedas D. The operation of the device illustrated in Figs. 7 and 8 is thesame as that of the device shown in Figs. l to G, inclusive.

It is evident that the device need not be constructed of several(originally) separate pipes or tubes, soldered or secured together asspecified, but may be cast in one piece of metal, having thelongitudinal exterior corrugations illustrated in Fig. 7 and providedwith tubular passages, which are either formed while in the mold, orsubsequently bored out.

The purpose of having a plurality of tubes or passages a (or a) is toincrease the proportionate interior tubular surface in relation to thevolume of the contents of each tube or passage, so that said contentshave a relatively increased impinging contact with the tube or passage,by means of which the passing current is more frequently diverted andwith more comparative force, and so more broken up, thus insuring a verythorough mixture of the air and water. rl`hc finer this mixture, themore readily it is absorbed by the external atmosphere, and the greaterthe quantity of water which said atmosphere can take up and assimilate;and besides this, the discharge is more uniform in quantity, and thedistribution of it in the different radial directions is more equal thau if there were one single column of mingled air and water in a singletube, discharged through a single nozzle, or even through a plurality ofradially directed orifices. The comminution of the water element of thevolume in the tubes a (or a) should be so fine and the mixture so nearlyperfect that the water discharged is in a sufficiently fine spray so asnot to be liable to condense and consequently to drip. I havedemonstrated that by my improved humidifying device hereinbeforedescribed, three gallons of water per hour can be discharged anddissipated into the natural atmosphere without. any drip.

It is seen that the discharging orifices H are not adjustable, but areof invariable capacity. It has been found by experience that byattempting to vary the dimensions of such discharge openings, aconsiderable degree of skill and care is necessary in order to preventdrippage. In my device, the size of the discharging orifices isdetermined carefully by experiment, and when so fixed, is incapable ofvariation, thus obviating all danger of drippage, or the exercise of anyspecial care or skill, the results having been exactly predetermined andthe discharge rendered positive, uniform and reliable.

I claim as a novel and useful invention and desire to secure by LettersPatent 1. In a humidifier for discharging mingled water and air underpressure, the combination of a nozzle having a plurality of tubularpassages extending longitudinally through said nozzle and parallel witheach other, each of which passages has a closed bottom and is providedwith a radially vdirected discharging orifice; a deflecting devicemounted in the upper end of said nozzle centrally between said tubularpassages; and an annular fiange mounted on the nozzle at or adjacent toall said discharging orifices and approximately in the plane thereof,and provided with a concaved upper surface; all arranged so that thecurrent of said mingled water and air is divided and separated by thedefiecting device and directed thereby through the tubular passages inseparate currents, which are discharged therefrom upon the concavedsurface of the annular flange.

2. In a humidifier, the combination of a plurality of parallel tubularpassages constituting a nozzle, and each having intermediate its ends adischarging orifice directed radially outward; a detachable plug closingthe bottom of each of the tubular passages;l an annular flange mountedon the nozzle at right angles thereto and having a concaved uppersurface adapted to receive the discharge from all the tubular passagesand to spread and direct the currents discharged from said passages; aconical defiector located at the upper end of said passages andcentrally between the same; and a tube hav ing a chamber wherein saidpassages open at the upper end thereof and wherein said defiector islocated, which tube is adapted to conduct into said chamber mingledwater and air under pressure.

3. In a humidifier, the combination of a nozzle, having its upper andlower ends threaded and provided with a plurality 0f parallel tubularpassages; a supply pipe in l threaded engagement with the upper end ofthe nozzle and having a concentric chamber at its inner end, which vpipeis adapted t0 conduct to said chamber and nozzle mingled water and airunder pressure; a discharging device in each of said tubular passagesintermediate its ends, all said discharging devices being in one planewhich is at right angles to said tubular passages, respectively; adetachable plug closing the lower end of each of the tubularpassages; acap engaged with the lower screw threads of the nozzle; a spreader uponthe nozzle in said plane adapted to receive the discharge from all saidpassages and to direct radially and disseminate in the externalatmosphere the said discharge; land a conical deflector located in saidchamber upon the'upper end of the nozzle and centrally between the upperends of the tubular passages, arranged and adapted to divide the mingledwater and air currents lin the chamber and direct the divided currentsequally into said tubular passages.

t. In ahumidifier, the combination of a cast metal nozzle having aplurality of longitudinal bores and discharging orices for said bores,respectively; a supply pipe adapted to convey to said nozzle mingledwater land air under pressure; and a fiange upon the exterior surface ofthe nozzle and so located and adapted as to receive and deflect saidmingled water and air under pressure when discharged thereon from saidchamber.

In testimony whereof I afiiX my signature in presence of two witnesses.

JAIIES KELLY. Witnesses:

HOWARD A. LAMPREY, W'ARREN R. PEROE.

